CGEO-EX3 Vibrating Wire Rod Extensometer

Product Detail

Description

CGEO-EX3 Single/Multiple Point Rod Extensometer can be installed in boreholes to monitor deformation or settlement displacement in different areas. Various types of anchors, such as groutable anchor, hydraulic anchor, and grab ring anchor, can be selected based on different geological conditions. CGEO-EX3 Single/Multiple Point Rod Extensometer features high accuracy, excellent waterproof performance, and long-term stability.

Applications

Tunneling

Deep excavations

Dams

Foundations

Settlement monitoring

Rock displacements

Operation

Together with the CGEO-EX3-6 Vibrating Wire Displacement Transducer, the CGEO-EX3 Single/Multiple Point Extensometers can realize remote monitoring with simple structure and easy installation.

The simple structure makes the instruments easy to install. The inner thermometer can also measure the temperature of the borehole. The VW Extensometer has high accuracy and sensitivity, outstanding water-proof capability, out of causticity, and long time stability.

The borehole rods are made from stainless steel or fiberglass, which are connected to the measurement sensors. The rods are protected from the plastic pipes to ensure their free travel.

Up to 12 rod extensometers of these rod / pipe / anchor combinations of differing lengths can be installed in one borehole. This not only enables the measurement of the magnitude of any movements but also the location of any failure planes and zones of movements.

Features

Accurate, long-term stability

Long working life, long-term stability and reliability

Suitable for manual or remote monitoring

Waterproof

Integral thermistor

Specifications

Model	CGEO-EX3
Range	12.5, 25, 50, 100, 150, 200, 250, 300mm
Nonlinearity	Linearity: ≤0.5% F.S.; Polynomial: ≤0.1% F.S.
Resolution	0.025% F.S.
Temperature Range	-20° to +80°C
Rod	Fiberglass/ Stainless Steel
Points	≤12